Ball-bearing door and window



g- 1929- M. POLACOFF BALL BEARING DOOR AND WINDOW Filed Aug. 9, 1928 Max Fnlacnfi Emnmtoz Patented Aug. 13, 1929.

UNITED STATES MAX POLACOFF, OF BROOKLYN, NEW YORK.

BALL-BEARING DOOR AND WINDOW.

Application filed August 9, 1928. Serial No. 298,461.

My invention relates to doors and windows and refers more particularly to ball bearing doors and windows.

One object of my invention is to provide ball bearings for doors as a substitute for hinges.

Another object of my invention is to provide ball bearings for windows with the object in view of doing away with sash weights and cords.

With these and other objects in view my invention consists of the specific method of construction and the particular organization of parts illustrated in the accompanying drawings, wherein similar parts are referred to by like numerals, in which Figure 1, is. an elevation of a window with ball bearings.

Figure 2, is a cross section taken on lines 22 of Figure 1.

The window 1, is comprised of a frame having a sill or bottom plate 2, side plates or pieces 3 and 4, top plate 5, a division piece 6, and pieces 7 and S, for holding the glass 9, on the window opening, said parts having means for connecting or interlocking together and for attaching to a buildirv wall.

The openings 10 and 11, are each provided with a window 12 and 13, each comprised of a frame 14, with a rod 15, having the glass 16 and 1'7, each side thereof and the ends of rods carrylng a ball 18, said ball engaging with suitable bearing pockets in the bottom plate 12, and top plate 5, and each of the said windows are provided with handles 19, attached thereto by the bolt 20.

It is obvious that each of the windows 12 and 13, are centrally pivoted upon the balls 18, and can be easily moved or swung or pivoted around by means of the handle 19, and wfimld require no sash weights or sash cords at a Having thus described and illustrated the preferred embodiment of my invention, I do not wish to limit myself to exact constuction or arrangement of parts shown, since it is evident that modifications may be made therein without departing from the spirit of the invention or scope of the claim.

I claim In a window including a frame and sash. a "indow frame provided with a vertical centrally arranged bearing supporting rod with glass on each side thereof, a handle and window bearing balls on each end of the said rod engaging with pockets in the said window sas Signed at New York in the county and State of New York this 31 day of Julv, 1928.

MAX POLACOFF. 

